Backing up Virtual Machines

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trope
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Backing up Virtual Machines

Post by trope »

Any recommendations for how to back up virtual machines? Since each one is 10s of GBs, I would ideally want a differential backup, but AFAIK most linux software would recognize even a small difference in a 50 GB file as an entirely new file and thus be wasteful in backups, even in incremental mode?
Using Mint 20 Ulyana.
ajgringo619
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Re: Backing up Virtual Machines

Post by ajgringo619 »

What exactly are you trying to backup - important data or the whole machine?
Mint 20 XFCE [kernel 5.4.0-54-generic]
Ryzen 7 2700X Eight-Core w/16 GB RAM
GTX 1070 w/8GB RAM [Folding]
GTX 1050Ti w/4GB RAM [Nvidia v455.38]
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trope
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Re: Backing up Virtual Machines

Post by trope »

ajgringo619 wrote:
Wed Sep 16, 2020 6:52 pm
What exactly are you trying to backup - important data or the whole machine?
The whole machine. Important data I have in a shared folder.
ajgringo619
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Re: Backing up Virtual Machines

Post by ajgringo619 »

trope wrote:
Fri Sep 18, 2020 4:05 pm
ajgringo619 wrote:
Wed Sep 16, 2020 6:52 pm
What exactly are you trying to backup - important data or the whole machine?
The whole machine. Important data I have in a shared folder.
OK, then it's just a matter of copying the entire folder where the VM lives to somewhere else. I would make sure that the VM is shutdown before copying. You're not going to get a differential or incremental backup this way, but it makes recovery a snap. I do this once a week, keeping (2) backups of each VM.
Mint 20 XFCE [kernel 5.4.0-54-generic]
Ryzen 7 2700X Eight-Core w/16 GB RAM
GTX 1070 w/8GB RAM [Folding]
GTX 1050Ti w/4GB RAM [Nvidia v455.38]
Image
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